package gui;

import gui_controller.Jcalendar_gui_controller;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Calendar;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;


public class JCalendar extends JFrame {


    private static Jcalendar_gui_controller jcalendar_gui_controller;
    public static final String WEEK_SUN = "SUN";
    public static final String WEEK_MON = "MON";
    public static final String WEEK_TUE = "TUE";
    public static final String WEEK_WED = "WED";
    public static final String WEEK_THU = "THU";
    public static final String WEEK_FRI = "FRI";
    public static final String WEEK_SAT = "SAT";

    public static final Color background = Color.white;
    public static final Color foreground = Color.black;
    public static final Color headerBackground = Color.blue;
    public static final Color headerForeground = Color.white;
    public static final Color selectedBackground = Color.blue;
    public static final Color selectedForeground = Color.white;

    private JPanel cPane;
    private JLabel yearsLabel;
    private JSpinner yearsSpinner;
    private JLabel monthsLabel;
    private JComboBox monthsComboBox;
    private JTable daysTable;
    private AbstractTableModel daysModel;
    private Calendar calendar;

    public JCalendar(Jcalendar_gui_controller jcalendar_gui_controller) {
        this.jcalendar_gui_controller = jcalendar_gui_controller;
        this.setLayout(null);
        cPane = new JPanel();
        init();
        this.add(cPane);
        this.setSize(780,520);
        cPane.setSize(760, 520);
        cPane.setLocation(0, 0);
        cPane.setBackground(new java.awt.Color(51, 51, 51));
       
    }

    public void init() {
        cPane.setLayout(new BorderLayout());

       // calendar = Calendar.getInstance();
        calendar = Calendar.getInstance();
        yearsLabel = new JLabel("Year: ");
        yearsSpinner = new JSpinner();
        yearsSpinner.setEditor(new JSpinner.NumberEditor(yearsSpinner, "0000"));
        yearsSpinner.setValue(new Integer(calendar.get(Calendar.YEAR)));
        yearsSpinner.addChangeListener(new ChangeListener() {
                public void stateChanged(ChangeEvent changeEvent) {
                    int day = calendar.get(Calendar.DAY_OF_MONTH);
                    calendar.set(Calendar.DAY_OF_MONTH, 1);
                    calendar.set(Calendar.YEAR, ((Integer) yearsSpinner.getValue()).intValue());
                    int maxDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
                    calendar.set(Calendar.DAY_OF_MONTH, day > maxDay ? maxDay : day);
                    updateView();
                }
            });

        JPanel yearMonthPanel = new JPanel();
        cPane.add(yearMonthPanel, BorderLayout.NORTH);
        yearMonthPanel.setLayout(new BorderLayout());
        yearMonthPanel.add(new JPanel(), BorderLayout.CENTER);
        JPanel yearPanel = new JPanel();
        yearMonthPanel.add(yearPanel, BorderLayout.WEST);
        yearPanel.setLayout(new BorderLayout());
        yearPanel.add(yearsLabel, BorderLayout.WEST);
        yearPanel.add(yearsSpinner, BorderLayout.CENTER);

        monthsLabel = new JLabel("Month: ");
        monthsComboBox = new JComboBox();
        for (int i = 1; i <= 12; i++) {
            monthsComboBox.addItem(i);
        }
        monthsComboBox.setSelectedIndex(calendar.get(Calendar.MONTH));
        monthsComboBox.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent actionEvent) {
                    int day = calendar.get(Calendar.DAY_OF_MONTH);
                    calendar.set(Calendar.DAY_OF_MONTH, 1);
                    calendar.set(Calendar.MONTH, monthsComboBox.getSelectedIndex());
                    int maxDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
                    calendar.set(Calendar.DAY_OF_MONTH, day > maxDay ? maxDay : day);
                    updateView();
                }
            });
        JPanel monthPanel = new JPanel();
        yearMonthPanel.add(monthPanel, BorderLayout.EAST);
        monthPanel.setLayout(new BorderLayout());
        monthPanel.add(monthsLabel, BorderLayout.WEST);
        monthPanel.add(monthsComboBox, BorderLayout.CENTER);

        daysModel = new AbstractTableModel() {
                public int getRowCount() {
                    return 7;
                }

                public int getColumnCount() {
                    return 7;
                }

                public Object getValueAt(int row, int column) {
                    if (row == 0) {
                        return getHeader(column);
                    }
                    row--;
                    Calendar calendar = (Calendar) JCalendar.this.calendar.clone();
                    calendar.set(Calendar.DAY_OF_MONTH, 1);
                    int dayCount = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
                    int moreDayCount = calendar.get(Calendar.DAY_OF_WEEK) - 1;
                    int index = row * 7 + column;
                    int dayIndex = index - moreDayCount + 1;
                    if (index < moreDayCount || dayIndex > dayCount) {
                        return null;
                    } else {
                        return new Integer(dayIndex);
                    }
                }
            };

        daysTable = new CalendarTable(daysModel, calendar);
        daysTable.setCellSelectionEnabled(true);
        daysTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        daysTable.setDefaultRenderer(daysTable.getColumnClass(0), new TableCellRenderer() {
                public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
                                                               boolean hasFocus, int row, int column) {
                    String text = (value == null) ? "" : value.toString();
                    JLabel cell = new JLabel(text);
                    cell.setOpaque(true);
                    if (row == 0) {
                        cell.setForeground(headerForeground);
                        cell.setBackground(headerBackground);
                    } else {
                        if (isSelected) {
                            cell.setForeground(selectedForeground);
                            cell.setBackground(selectedBackground);
                        } else {
                            cell.setForeground(foreground);
                            cell.setBackground(background);
                        }
                    }

                    return cell;
                }
            });
        updateView();

        cPane.add(daysTable, BorderLayout.CENTER);
    }

    public static String getHeader(int index) {
        switch (index) {
        case 0:
            return WEEK_SUN;
        case 1:
            return WEEK_MON;
        case 2:
            return WEEK_TUE;
        case 3:
            return WEEK_WED;
        case 4:
            return WEEK_THU;
        case 5:
            return WEEK_FRI;
        case 6:
            return WEEK_SAT;
        default:
            return null;
        }
    }

    public void updateView() {
        daysModel.fireTableDataChanged();
        daysTable.setRowSelectionInterval(calendar.get(Calendar.WEEK_OF_MONTH),
                                          calendar.get(Calendar.WEEK_OF_MONTH));
        daysTable.setColumnSelectionInterval(calendar.get(Calendar.DAY_OF_WEEK) - 1,
                                             calendar.get(Calendar.DAY_OF_WEEK) - 1);
    }
    public static class CalendarTable extends JTable {
        private Calendar calendar;
        public CalendarTable(TableModel model, Calendar calendar) {
            super(model);
            this.calendar = calendar;
             this.addMouseListener(new MouseAdapter()
        {
          public void mouseClicked(MouseEvent e)
          {
            
            if (e.getClickCount() == 2 )
            {
                ClickPerformed();
            }
          }
        });

            this.setRowHeight(48);
        }
     

          public void ClickPerformed(){
              jcalendar_gui_controller.requestMyNote(this.calendar.get(Calendar.YEAR),this.calendar.get(Calendar.MONTH)+1,this.calendar.get(Calendar.DATE));
   
          }
        public void changeSelection(int row, int column, boolean toggle, boolean extend) {
            super.changeSelection(row, column, toggle, extend);
            if (row == 0) {
                return;
            }
            Object obj = getValueAt(row, column);
            if (obj != null) {
                calendar.set(Calendar.DAY_OF_MONTH, ((Integer)obj).intValue());
            }
        }
    }

    

}